You are studying the mineralogy of a soil and have made the following measurements in the lab: The soil is composed of 64% clay, with 3% organic matter. The soil pH is 6.5. The total soil CEC is 70 cmolc/kg. Using the assumption that the CEC of organic matter is 150 cmolc/kg at pH 6.5, please determine the most likely kind of clay mineral that is present in the soil sample. O allophane O gibbsite illite O smectite

Principles of Geotechnical Engineering (MindTap Course List)
9th Edition
ISBN:9781305970939
Author:Braja M. Das, Khaled Sobhan
Publisher:Braja M. Das, Khaled Sobhan
Chapter4: Plasticity And Structure Of Soil
Section: Chapter Questions
Problem 4.12P
icon
Related questions
Question
You are studying the mineralogy of a soil and have made the following measurements in the lab:
The soil is composed of 64% clay, with 3% organic matter. The soil pH is 6.5. The total soil CEC is 70
cmolc/kg. Using the assumption that the CEC of organic matter is 150 cmolc/kg at pH 6.5. please
determine the most likely kind of clay mineral that is present in the soil sample.
allophane
gibbsite
ilite
O smectite
Cation exchange occurs because cations are bound to soil colloids through
O inner sphere complexes
O cation bridging
pH dependent complexes
outer sphere complexes
Transcribed Image Text:You are studying the mineralogy of a soil and have made the following measurements in the lab: The soil is composed of 64% clay, with 3% organic matter. The soil pH is 6.5. The total soil CEC is 70 cmolc/kg. Using the assumption that the CEC of organic matter is 150 cmolc/kg at pH 6.5. please determine the most likely kind of clay mineral that is present in the soil sample. allophane gibbsite ilite O smectite Cation exchange occurs because cations are bound to soil colloids through O inner sphere complexes O cation bridging pH dependent complexes outer sphere complexes
Expert Solution
steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Weight-volume relationships
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Principles of Geotechnical Engineering (MindTap C…
Principles of Geotechnical Engineering (MindTap C…
Civil Engineering
ISBN:
9781305970939
Author:
Braja M. Das, Khaled Sobhan
Publisher:
Cengage Learning